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Photoshop CC 2015 Latest Release: Show-Stopper Drawing Bug (UPDATE: fix coming)

First as a sideabar—an annoying but minor bug: recent file list is broken when used via ACR for raw files. I’m told by Adobe that it is already fixed (but fix not yet released). UDPATE: Adobe sent me a pending bug fix of ACR which fixes the issue. Adobe indicates they are working on getting the fix out to customers ASAP.


First issue: blurry images with the GPU problem is a known issue that apparently requires major code revisions in Photoshop, and also precludes use of 10-bit color for my work, since I cannot evaluate images when blurred (GPU has to enabled for 10 bit).

But the serious and work-stopping issue is that enabling the GPU can cause severe drawing bugs (continues below):

UPDATE: I'm told by Adobe that this is actually a cross platform bug and that it is related to the use of Adobe Camera Raw. GOOD NEWS: after installing an ACR update that Adobe sent to me for testing today, I am not seeing this drawing glitch problem any more. The ACR fix/update should be out soon, according to Adobe.

Photoshop CC 2015 drawing bugs with GPU enabled

This drawing bug has been present all year, but rarely occurred. Last night with about 10 images open, drawing problems started happening (at some zoom levels, though not all). I was told by Adobe months ago that this is an elusive and known bug behavior, but now with the latest release it has become a severe problem (well, on my system!), so the GPU must be disabled for my work.

  • Does not always happen, but once the drawing problems start, Photoshop must be quit and restarted (a major nuisance with 5/10/20 images open and in progress).
  • Problems are seen at most zoom levels but not all.
  • System setup is dual display on a 2013 Mac Pro.
Dual displays on 2013 Mac Pro: NEC PA302W (primary) + NEC PA322UHD (secondary) on
2013 Mac Pro, D700 GPUs, 64GB memory, 3.3 GHz 8-core Mac Pro, dual displays, OS X El Capitan=

Mark C writes:

I was looking at the picture on your web site labelled "Photoshop CC 2015 drawing bugs . . .”

I have started to have the same problems on a late 2014 Retina iMac running OS X 10.11.2 and I am not running any Adobe products other than possibly flash.

DIGLLOYD: See update at top.

Colin H writes:

Thank you for writing on this. I’ve been having this problem on and off for several months with my late 2013 15-inch Retina MacBook Pro. I would see the problem in Photoshop CC 2015 (current) after processing files in current versions of Camera Raw. My fix was the same as yours, quitting the program and restarting.

I couldn’t tell if it was a systems resources issue or a hardware issue so it is good to know that it appears instead to be a software issue.

On another note, I just wish there was a way for Creative Cloud to tell me when Camera Raw has been updated, despite my efforts Camera Raw does not show up on my list of Creative Cloud apps that can be updated via CC. I have to go search the adobe site to find the direct link to download the new version from their website. Not the way I though CC was supposed to work.

Thank you for your ongoing reporting on these issues.

DIGLLOYD: it takes time, but I though it might be helpful—it can be mystifying and frustrating to try to track down causes of such things. I've sent a note to Adobe on the Camera Raw question.

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